That depends largely on where you want to go. Downtown Saarbruecken, about 19 miles from Zweibruecken Airport (ZQW), can be tricky to drive around. Make things easier by renting something compact, fuel-efficient, and a breeze to handle. Having said that, Saarbruecken is also a jumping off point for many of the snowfields in Saarland. If your vacation is more about cruising the wide-open roads, then you may prefer something with more trunk space and room to move around. How about a full-size car or a standard SUV?